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Finding the Fourth Proportional to 70,813.37, 97,725.96 and 38,981.93

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Solution

The fourth proportional to 70,813.37, 97,725.96 and 38,981.93 is: 53,797.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,813.37 : 97,725.96 = 38,981.93 : x
  2. Step 2: Convert to fraction form
    70,813.37/97,725.96 = 38,981.93/x
  3. Step 3: Cross multiply
    70,813.37x = 97,725.96 × 38,981.93
  4. Step 4: Simplify right side
    70,813.37x = 3,809,546,531.90
  5. Step 5: Solve for x
    x = 3,809,546,531.90/70,813.37
  6. Step 6: Final answer
    x = 53,797.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.